- #1
vg19
- 67
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Hey again!
Im having trouble with this problem given in the matrix inverse section of the textbook. It gives these two matricies in the form AX=B
[x1]=[3 -1 2][y1]
[x2]=[1 0 4][y2]
[x3]=[2 1 0][y3]
and
[z1]=[1 -1 1][y1]
[z2]=[2 -3 0][y2]
[z3]=[-1 1 -2][y3]
The question says, given the first matrix and the second matrix, express the variables, x1, x2, x3 in terms of z1, z2, z3. I am not too sure on where to start here. So far, I just multiplied through to find the equations for the x variables and z variables.
x1 = 3y1 - y2 + 2y3
x2 = y1 + 4y3
x2 = 2y1 + y2
z1 = y1 - y2 + y3
z2 = 2y1 - 3y2
z3 = -y1 + y2 + 2y3
Im not sure on where to go from here.
Thanks in advance
Im having trouble with this problem given in the matrix inverse section of the textbook. It gives these two matricies in the form AX=B
[x1]=[3 -1 2][y1]
[x2]=[1 0 4][y2]
[x3]=[2 1 0][y3]
and
[z1]=[1 -1 1][y1]
[z2]=[2 -3 0][y2]
[z3]=[-1 1 -2][y3]
The question says, given the first matrix and the second matrix, express the variables, x1, x2, x3 in terms of z1, z2, z3. I am not too sure on where to start here. So far, I just multiplied through to find the equations for the x variables and z variables.
x1 = 3y1 - y2 + 2y3
x2 = y1 + 4y3
x2 = 2y1 + y2
z1 = y1 - y2 + y3
z2 = 2y1 - 3y2
z3 = -y1 + y2 + 2y3
Im not sure on where to go from here.
Thanks in advance